Identification and Validation of an Engine Performance Database Model for the Flight Management System

Ghazi, Georges; Botez, Ruxandra Mihaela

doi:10.2514/1.i010663

Cited by 18 publications

(8 citation statements)

References 22 publications

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“…There are several ways to obtain such simulation models which base on different sources of information about the distinct aircraft type. For example, the simulation model formulation could be based on published aerodynamic and engine data, e.g., from handbooks or aircraft manuals [4]. Unfortunately, aircraft manuals do normally not contain the engine thrust values but only engine state information, which makes it impossible to obtain engine thrust models without additional information.…”

Section: List Of Symbolsmentioning

confidence: 99%

Aerodynamic model adjustment for an accurate flight performance representation using a large operational flight data base

Deiler

2023

CEAS Aeronaut J

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A novel process to determine an aircraft performance model from operational flight data with limited a priori knowledge is developed. The given big data problem is solved by application of fundamental engineering knowledge and a specific data evaluation strategy. The resulting smart data approach is fundamentally different from existing deep learning methods to solve such big data problems. A given aerodynamic model is updated to represent the characteristics of an Airbus A320neo aircraft based on a given large database of operational flights. The updated aerodynamic model implementation for one specific flap/slat configuration is exemplarily compared to the information available from flight data and the results are discussed in terms of model quality.

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Section: List Of Symbolsmentioning

confidence: 99%

Aerodynamic model adjustment for an accurate flight performance representation using a large operational flight data base

Deiler

2023

CEAS Aeronaut J

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“…There are several ways to obtain such simulation models which base on different sources of information about the distinct aircraft type. For example, the simulation model formulation could be based on published engine data, e.g., from handbooks or aircraft manuals [4]. Unfortunately, aircraft manuals do normally not contain the engine thrust values but only engine state information, which makes it impossible to obtain engine thrust models without additional information.…”

Section: List Of Symbolsmentioning

confidence: 99%

“…The given flight database is searched for specific symmetric engine conditions and the results are split into individual data sets for each anti-ice system configuration. 4 An overview of the data selection for the engine thrust model development is given in Table 2.…”

Section: Engine Thrust Model For Dynamic Aircraft Simulationmentioning

confidence: 99%

“…This could e.g., result from a wrong configuration of the recorder during flight and problems with decoding the recorded flight data afterwards 3. Used with the Airbus A 320neo in the given flight database 4. The A 320 ice protection system is based on thermal anti-ice requiring engine bleed air which directly influences the engine thrust despite similar engine conditions: for example, similar fan speed, airspeed, altitude or air temperature could lead to different thrust conditions with ice protection systems activated.…”

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confidence: 99%

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Engine thrust model determination and analysis using a large operational flight database

Deiler

2022

CEAS Aeronaut J

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Different engine thrust models are developed from operational flight data with limited a priori knowledge as part of a novel process for aircraft flight performance model determination. The given big data problem is solved by application of fundamental engineering knowledge and a specific data evaluation strategy. The resulting smart data approach is fundamentally different from existing artificial intelligence methods to solve such big data problems. A linear, a local-linear and a complex nonlinear thrust model are determined on the example of a given large database of operational flights with Airbus A 320neo aircraft. Even with limited information about the actual engine thrust from the available data, the resulting models allow to (well) predict the engine thrust characteristics within the required flight envelope. In addition, a temperature correction is predicted for the thrust model results to further enhance the model’s accuracy. Finally, the characteristics of the different thrust model implementations, evaluation results and thrust prediction quality are discussed.

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“…With the substantial increase in carbon dioxide (CO 2 ) emissions into the atmosphere over the past several years [1,2], the aerospace sector has to limit its figures in the near future [3,4]. For that, some solutions are available, such as working on trajectories optimization [5][6][7][8][9][10] or improving aircraft models to design reliable flight simulators [11][12][13][14]. It has been shown that trajectory optimization can save up to 2% of the cost of flights.…”

Section: Introductionmentioning

confidence: 99%

New Aerodynamic Studies of an Adaptive Winglet Application on the Regional Jet CRJ700

et al. 2021

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This study aims to evaluates how an adaptive winglet during flight can improve aircraft aerodynamic characteristics of the CRJ700. The aircraft geometry was slightly modified to integrate a one-rotation axis adaptive winglet. Aerodynamic characteristics of the new adaptive design were computed using a validated high-fidelity aerodynamic model developed with the open-source code OpenFoam. The aerodynamic model successively uses the two solvers simpleFoam and rhoSimpleFoam based on Reynold Averaged Navier Stokes equations. Characteristics of the adaptive winglet design were studied for 16 flight conditions, representative of climb and cruise usually considered by the CRJ700. The adaptive winglet can increase the lift-to-drag ratio by up to 6.10% and reduce the drag coefficient by up to 2.65%. This study also compared the aerodynamic polar and pitching moment coefficients variations of the Bombardier CRJ700 equipped with an adaptive versus a fixed winglet.

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Identification and Validation of an Engine Performance Database Model for the Flight Management System

Cited by 18 publications

References 22 publications

Aerodynamic model adjustment for an accurate flight performance representation using a large operational flight data base

Aerodynamic model adjustment for an accurate flight performance representation using a large operational flight data base

Engine thrust model determination and analysis using a large operational flight database

New Aerodynamic Studies of an Adaptive Winglet Application on the Regional Jet CRJ700

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